What is a flexible cable?

In the world of electrical engineering and design, flexible cables are indispensable. 

Whether you’re working on industrial machinery, electronics, or everyday household items, flexible cables play a crucial role in ensuring reliable, durable, and efficient electrical performance.

But what exactly is a flexible cable, and how is it different from traditional cables?  This article will dive into what they are, their construction, benefits and common applications.

What is a flexible cable?

A flexible cable is a type of electrical cable that can bend and flex without damaging the internal wiring. Unlike standard rigid cables, which are designed to stay in a fixed position, flexible cables are engineered to endure constant movement or twisting while maintaining their performance and safety standards. 

This makes them ideal for use in applications where cables need to move, twist, or bend around corners without compromising their functionality or causing wear over time.

Construction of flexible cables

Flexible cables are made from several key components:

Conductor material

The central core of flexible cables is typically made from copper or aluminum. These metals are excellent conductors of electricity, which ensures that the cable can carry the necessary electrical current efficiently.

Insulation

To prevent electrical shorts and protect the conductor, flexible cables are coated with an insulating material, such as PVC (polyvinyl chloride), rubber, or thermoplastic elastomers. This wire insulation allows the cable to safely carry electrical signals or power, even when exposed to environmental factors.

Stranded conductor

Unlike solid cables, which use a single solid wire as the conductor, flexible cables often feature stranded conductors. These are made up of many thin strands of wire twisted together. 

This construction allows the cable to bend and flex without breaking or losing conductivity, making it ideal for dynamic environments.

Sheath or jacket

The outer layer of a flexible cable, known as the sheath or cable jacketing, provides additional protection against abrasion, chemicals, moisture, and extreme temperatures.

The materials used for the jacket vary depending on the application but often include high-quality rubbers, thermoplastics, or flame-retardant compounds.

Reinforcement (if necessary)

Some flexible cables may feature added reinforcements, such as steel or fiberglass, to improve their strength and resilience when used in more demanding environments. These are often referred to as armoured cables.

Why use flexible cable?

Flexible cables offer several advantages over their rigid counterparts, including:

1. Increased durability

The flexible design reduces the risk of damage due to bending, twisting, or pulling, making them more durable in dynamic environments where constant movement is necessary.

2. Improved versatility

Flexible cables can be used in a wide range of applications, from robotics and manufacturing equipment to consumer electronics and vehicles. Their ability to bend and twist allows them to fit into tight spaces or navigate complex machinery.

3. Enhanced safety

The benefits of wire insulation are many, and for flexible cables, it can provide a high degree of protection against electrical hazards, environmental factors, and physical wear and tear. This makes them ideal for applications that require a high level of safety and reliability.

4. Better performance

Flexible cables can maintain electrical performance, even under stress. Whether it’s transmitting data or power, the structure of the cable ensures stable signal integrity and current flow.

5. Adaptability to movement

As industries move towards more automation and flexible systems, the demand for cables that can handle constant motion has grown. Flexible cables can accommodate the continuous movement of parts and machinery without losing their functionality.

Applications of flexible cables

Flexible cables are used in a wide variety of applications across different industries. Some common uses include:

Robotics

Flexible cables are crucial in robotic systems where components need to move frequently and continuously. These cables enable the smooth transmission of electrical power and signals without interruption.

Manufacturing & machinery

In industrial settings, flexible cables are used in automated machines, conveyors, and equipment that experience repetitive movements. Their flexibility ensures reliability and prevents the cables from becoming damaged under constant movement.

Automotive

Flexible cables are essential in the automotive industry, particularly in systems like lighting, sensors, and infotainment, where components need to bend and flex according to the vehicle’s design.

Consumer electronics

In everyday gadgets such as smartphones, computers, and appliances, flexible cables are used to ensure that electrical connections remain intact even when the device is in use or moved frequently.

Construction & building

Flexible cables are often used for powering tools, machinery, or lighting systems in construction sites where constant movement is required. They provide safety and flexibility in a dynamic work environment.

Why choose Custom Designed Flexible Cables?

While standard flexible cables are available, customised cables offer tailored solutions for unique applications. At Custom Designed Cable, we understand that different industries have specific requirements when it comes to cable design

Custom flexible cables can be manufactured to your exact specifications, ensuring optimal performance for your project or equipment.

Custom cables can be designed with:

  • Specific conductor materials or sizes for improved electrical conductivity
  • Customised insulation for enhanced durability in challenging environments
  • Unique sheaths to meet specific safety, environmental, or aesthetic requirements
  • Specialised reinforcements for cables that need additional strength

Flexible cables are an essential part of modern technology, providing the durability, versatility, and performance required for a wide range of applications. 

By partnering with companies like Custom Designed Cable, you can ensure that your cables are designed to meet the exact specifications of your project, ensuring maximum safety and efficiency.

Get in touch with us today and let us help bring your vision to life!